You have 1million dollar to invest in the stock market. You invest 200,000 in Google, which expected return is 22.5%; 300,000 in Apple, which expected return is 35%; and 500,000 in Dell, which expected return is 15%. The weight average of the expected return of your 1million investment is _____(1)____%. (Please pay attention to the % sign, if your answer is like 22.45%, you should input 22.45)

b. The course evaluation is as follows: XA 1 25 % XA 2 25 % Assignment 10 % YA 40 %. Assume Mark’s XA 1 is 69%, XA 2 is 56%, assignment is 90%, what should be Mark’s minimum YA mark to get C (60%) as final grade? _____(7)____%. (Please pay attention to this %, if your answer is like 22.45%, you should input 22.45)